2000 rpm is a bit high for an idle. I would suggest around 1400 max. the 2000rpm suggestion was just to show that the charging system really starts working at that point.

As for your stumble.. Most bikes at very low speeds will hesitate a little if you dump the gas on. Its just too much fuel for the engine to take under load and it will hesitate, then take off. If this what you are talking about, its normal and a more gradual throttle until your rpms are up a bit, then you can nail the throttle. the only other thing you can really do is slip the clutch a bit on take off to keep the rpms higher.

I would definately change the oil. I'm assuming its gone through a few seasons and quite afew miles. In fact, I would change it, then in another 1000 miles, change it again.

 

alright, thanks guys again. I'm def going to be changing the air filter and oil today possibly. I'll let you guys know how it runs once all is done. I'm sure changing the oil isn't too hard as I did it on my old bike a couple times, but, does anyone have a link to a write up on how to change it on the 600 RR 03 edition? Thanks.

 

all you gotta do is take take the bolts outa one mid and lower right side than drain, and get the filter off... i would suggest buying the k&n filter bcuz it has a bolt thing on the end so you can wrench of the filter next time as opposed to doing the rubber strap wrench.... thats a pain in the rear.